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Class Number: 318 Class Title: ELECTRICITY: MOTIVE POWER SYSTEMS Subclass Subclass Number Title 1 ELECTRIC MOTOR WITH NONMOTOR DRIVING MEANS (E.G., AXLE DRIVE, MANUAL DRIVE) 2 .Manual driving means 3 WITH PARTICULAR MOTOR-DRIVEN LOAD DEVICE 4 .Plural, diverse or diversely controlled load device 5 ..Plural motor drive 6 .Tension-maintaining type of motor-control system 7 ..Plural, diverse or diversely controlled motors 8 .Plural, diverse or diversely controlled driving motors (e.g., driving differential gearing) 9 .Power- or motion-transmitting mechanism 10 ..Reversible drive mechanism 11 ..Variable speed mechanism 12 ...Gearing 13 ....Differential type 14 ..Motion-converting mechanism 15 ..Mechanical gearing 16 SUPPLIED OR CONTROLLED BY SPACE-TRANSMITTED ELECTROMAGNETIC OR ELECTROSTATIC ENERGY (E.G., BY RADIO) 17 PORTABLE-MOUNTED MOTOR AND/OR PORTABLE-MOUNTED ELECTRICAL SYSTEMS THEREFOR 560 POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) 561 .Adaptive or optimizing systems including "bang-bang" servos 562 .Time-sharing or multiplexing systems 563 .With protective or reliability increasing features (e.g., "fail-safe" systems) 564 .."Redundant" operating channels 565 ..Monitoring systems 566 ..Maneuver, force, or load-limiting 567 .Program- or pattern-controlled systems 568.1 ..With program recording or composing means 568.11 ...Multifunction manipulator (i.e., Robot) 568.12 ....Mobile robot 568.13 ....With particular program teaching method 568.14 .....Manual lead through 568.15 ....With particular interpolation means 568.16 ....With particular sensing device 568.17 ....With multimode control (e.g., course-fine, position-force, etc.) 568.18 .....Including velocity control 568.19 ....With particular coordinate transformation means 568.2 ....With plural control systems (e.g., the interaction of plural processors to control the plural joints of a single robot): 568.21 .....Including end effector (e.g., gripping jaw, micromanipulator, etc.) 568.22 ....With particular compensation (e.g., gain, offset, etc.) 568.23 .....Including program modification 568.24 ....With reliability enhancement means (e.g., monitoring, redundant circuits, etc.) 568.25 .....Including display devicee 569 ..Digital or numerical systems 570 ...Contouring systems 571 ....With "feed-rate" control 572 ....With "zero-offset" or tool radius correction 573 ....With interpolating means 574 ....Multiple axes point to point systems 575 ..Multiple axes analog systems 576 ...Nonmechanical line, seam or edge followers 577 ....Optical or photoelectric line followers 578 ...Cam or template followers 579 ...Multiple pass systems 580 .Vehicular guidance systems with single axis control 581 ..Radio-controlled 582 ..Celestial navigation 583 ..Landing systems 584 ..Altitude or pitch control 585 ..Roll control 586 ..Yaw control 587 ..Land vehicles 588 ..Marine vehicles 589 ...Submarine and torpedo systems 590 .Multiple mode systems 591 ..With mode-engagement features (e.g., manual to automatic) 592 ..Fine and coarse systems 593 ...Separate fine and coarse motors 594 ...Digital systems 595 ...Multiple speed synchro systems 596 ..Combined "on-off" and proportional control 597 ..Slewing systems 598 ...With a separate slewing motor 599 .Pulse-width modulated power input to motor (e.g., "duty cycle" systems) 600 .Digital or numerical systems 601 ..Digital comparison 602 ...Commutating switch-type encoder 603 ..Pulse-counting systems 604 ..Analogue comparison 605 ...Synchro or resolver (e.g., transmitter simulators) 606 .Frequency- or phase-modulated systems 607 ..Frequency comparison 608 ..Phase comparison 609 ."Reset" systems (P.I.) 610 ..With rate (P. I. D.) (e.g., reset windup prevention) 611 .With stabilizing features (e.g., anti-hunting, damping) 612 ..Electric braking near balance (e.g., dynamic) 613 ...D.C. in A.C. windings 614 ..Friction-braking near balance including magnetic or eddy current brakes 615 ..By auxiliary feedback loop 616 ...Rate feedback 617 ....Variable rate feedback 618 ....Tachometer feedback 619 ..Variable gain bandwidth 620 ..Nonlinear circuits 621 ..Lead or lag networks 622 ...A.C. networks 623 ..Load stabilization (e.g., viscous, magnetic or friction dampers)) 624 ..By deadband at null (e.g., threshold circuits) 625 .Plural servomotors 626 .Limit or end-stop control 627 ..Secto-scanning systems 628 ."Feelback" systems 629 .Unwanted harmonic or voltage component elimination quadrature rejection systems 630 .Antibacklash systems (e.g., with unidirectional approach to balance) 631 .Antistatic friction features (e.g., "dither" voltage) 632 .With compensating features 633 .."Two-cycle error" compensation 634 ..Temperature compensation 635 .With signal-, voltage-, or current-limiting 636 ."Sampling" systems including miscellaneous "sampled data" control systems 637 .Analog computation 638 .With particular "error-detecting" means 639 ..Plural, diverse conditions 640 ..Photoelectric or optical-type measuring instruments 641 ..With particular temperature measuring instrument 642 ..With liquid level measuring instruments 643 ..With moisture content or wetness measuring instruments 644 ..With flow measuring instruments 645 ..With fluid pressure measuring instruments 646 ..With force or weight measuring instruments 647 ..With magnetic field measuring instruments 648 ..With inertial, direction or inclination measuring instrument 649 ...Stable platforms 650 ..With current, voltage or electrical power measuring instruments 651 ..With acceleration measuring instruments 652 ..With particular position measuring instruments 653 ...Magnetic transducers 654 ...Synchro control transmitter-transformer systems 655 ....With synchro differential 656 ...Differential transformer systems 657 ....Linear differential transformer 658 ...."E" type transformer 659 ...."Microsyn" type 660 ...."Inductosyn" systems 661 ....Resolver systems 662 ...Variable capacitor systems 663 ...Potentiometer systems including autotransformers and Wheatstone bridges 664 ....Minor arc seeking 665 ....Continuous rotation, unlimited range 666 ....Controlled tap and slidewire 667 ....With a bridge in the feedback circuit 668 .....Recalibrating systems 669 ...Standing wave 670 ...Contact resistance 671 .With particular motor control system responsive to the "actuating signal" 672 ..Discontinuous or "on-off" control 673 ...Seeking switch type 674 ...Wheatstone bridge type 675 ..One transmitter or controller element follows anotherr 676 ..Transmitter or controller element returned (e.g., force balance systems) 677 ..With particular servoamplifier 678 ...Differential amplifier 679 ...Diverse types of amplifiers in different stage 680 ...Magnetic servoamplifiers 681 ...Solid-state servoamplifiers 682 ...Rotating amplifier (e.g., "Ward Leonard" control) 683 ..With particular phase discriminator 684 ..With particular modulator or detector (e.g., choppers) 685 .."Step-by-step" motors in closed-loop servos 686 ..Reciprocating or oscillating motors 687 ..Linear movement motors 688 ..Shaded pole motors 689 Torquing motors 690 SELF-SYNCHRONOUS TYPE OF MOTOR 691 .With means to amplify transmitter signals 692 .Having induction or "selsyn" type transmitter 693 .Having impedance-type transmitter 694 .Having commutated dynamoelectric machine transmitter 695 .Having commutating switch-type transmitter 696 OPEN-LOOP STEPPING MOTOR CONTROL SYSTEMS 34 PLURAL, DIVERSE OR DIVERSELY CONTROLLED ELECTRIC MOTORS 35 .Motors with diverse motions (e.g., reciprocating and rotary motors) 37 .Plural reciprocating or oscillating motors 38 .Plural linear-movement motors 39 .Work and feed motors (e.g., indexing) 40 .Motor biased against rotation 41 .Having electrical synchronizing interconnections 42 ..Between windings on auxiliary dynamo-electric machines 43 ..D.C. or A.C. commutator motors with slip rings 44 ..Between induction motor secondaries 45 .Mechanically coupled in fixed ratio of movement 46 ..Motors having unlike operating characteristics 47 ...Synchronous and nonsynchronous motors 48 ..Mechanically coupled in torque opposition 49 .Motors electrically connected in cascade or tandem 50 ..With means for effecting other motor interconnections 51 .Plural, diverse motor controls for different motors 52 .Slipping and/or racing control for electric motors 53 .Plural, diverse motor controls 54 ..Motor-reversing 55 ...With running-speed control 56 ....And braking 57 ...And braking 58 ...And acceleration control 59 ..Running-speed control 60 ...And braking 61 ...And acceleration control 62 ...And automatic starting and/or stopping and/or with time delay 63 ..Braking 64 ..Acceleration control 65 .Motor-reversing 66 .Running-speed control 67 ..Diverse speeds for different motors 68 ..Relative motor speed controll 69 ...With speed-difference detector 70 ....Electrical-type detectors 71 .....Voltage and/or current difference detector 72 .....Dynamoelectric machine detector 73 .....Synchronously operated impedance detectors 74 .....Synchronously actuated switch detectors 75 ......Plural switches connected in series 76 ....Differential-gearing detector 77 ...Controlling motor speed in response to speed of another motor 78 ....Controlling A.C. frequency or rate of electrical impulses to other motor 79 ...Control of both armature (or primary) and field (or secondary) circuits 80 ...Armature or primary circuit control 81 ...Field secondary circuit control 82 ..Armature or primary circuit control 83 ...Series-parallel armature circuit connections 84 ..Field or secondary circuit control 85 .Synchronizing or phasing control 86 .Braking 87 ..Motor used as braking generator (dynamic braking) 88 ...Load or current division during braking 89 ...Motor as exciter for another motor 90 .Acceleration control 91 ..Accelerating motors in succession or selectively 92 ..Control of both armature (or primary) and field (or secondary) circuits 93 ...Series-parallel connected armature or primary circuits 94 ..Armature or primary circuit control 95 ...Series-parallel connections 96 ....With armature circuit impedance 97 ..Field or secondary circuit control 98 .Load control 99 ..Fixed ratio of load or current division 100 ...By field or secondary circuit control 101 .Starting and/or stopping 102 ..Sequential or successive starting and/or stopping 103 ..Selective starting and/or stopping 104 ..Armature (or primary) circuit control 105 .Plural, diverse or diversely controlled sources of armature (or primary) supply 106 ..Diverse sources 107 ...A.C. and D.C. 108 ....Different voltages 109 ...Different voltages 110 ...Different frequencies 111 .Series-parallel connected motors 112 .Parallel connected motors 113 .Series connected motors 114 IMPACT, MECHANICAL SHOCK, OR VIBRATION-PRODUCING MOTORS 115 MOTOR WITH DIVERSE MOTIONS (E.G., ROTARY AND RECIPROCATING) 116 NONMAGNETIC MOTOR 117 .Thermoelectric motor 118 MAGNETOSTRICTIVE MOTOR 119 RECIPROCATING OR OSCILLATING MOTOR 120 .Stopping after predetermined number of reciprocations or cycles (including single cycle)) 121 .Having means to produce a progressing or traveling motor field flux 122 .Plural, diverse or diversely controlled motor windings 123 ..Polyphase or diverse or diversely controlled sources of motor supply 124 ...A.C. and D.C. sources 125 ..Unidirectionally conductive devices in energizing circuit 126 .Energizing winding circuit control 127 ..Automatic in response to predetermined position, movement or condition in or of the motor or driven device 128 ...Noise, sound, vibration, movement or position of motor 129 ..By means for producing periodic electrical pulses in the energizing circuit 130 ...Electrical oscillation or condenser charging and/or discharging circuits 131 ...Motor or escapement-controlled means 132 ..By space-discharge or unidirectionally conductive devices in energizing circuit 133 ..By impedance devices in energizing circuit 134 ..By circuit making and/or braking devices 135 LINEAR-MOVEMENT MOTORS 136 AUXILIARY MEANS FOR PRODUCING MECHANICAL STARTING OR ACCELERATING TORQUE 137 .By auxiliary motor 138 SPACE-DISCHARGE-DEVICE COMMUTATED MOTOR 139 BATTERY-FED MOTOR SYSTEMS 140 GENERATOR-FED MOTOR SYSTEMS HAVING GENERATOR CONTROL 141 .Automatic generator control and/or with time-delay means 142 ..Responsive to diverse conditions or with time-delay means 143 ...Plural electrical conditions 144 ..Armature or primary current of motor 145 ..Terminal voltage or counter e.m.f. of motor 146 ..Speed of motor or driven device 147 ..Speed or frequency of generator or its drive means 148 .Alternating-current-motor system 149 .With plural, diverse or diversely controlled generators 150 .With flywheel on generator or on motor 151 .Control of both the generator and the circuit to the motor 152 ..With motor control 153 .Control of both the generator and the motor 154 ..Control of excitation (field) circuit of both 156 .Plural, diverse or diversely actuated, generator control means 157 .Generator speed control 158 .Generator field circuit control 159 HAVING ROTOR ELEMENT BIASED AGAINST ROTATION 160 .By resilient biasing means (e.g., spring) 161 WITH FLYWHEEL OR MASSIVE ROTARY MEMBER 162 CONTROL BY PATTERNS OR OTHER PREDETERMINED SCHEDULE MEANS 163 .Motor running-speed control 164 ..Cyclically varying or repeated speed schedules 700 SYNCHRONOUS MOTOR SYSTEMS 701 .Hysteresis or reluctance motor systems 702 .Antihunting or damping 703 .Braking 704 .Pole changing motor winding circuits 705 .Synchronization systems 706 ..With armature power removal upon failure to synchronize or loss of synchronismm 707 ...Upon failure to resynchronize 708 ...Responsive to thermal electrical element in system 709 ..Having different armature voltage prior to synchronism 710 ..With d.c. field removal 711 ...With electronic control element in system 712 ..With field excitation application 713 ...Responsive to slip voltage frequency in d.c. field winding 714 ...Responsive to armature current 715 ...Responsive to rotor speed or rotor driven member 716 .Field winding circuits 717 ..Responsive to a motor condition 718 ...Induced voltage in field winding 719 ...Speed responsive field power sources 720 .Armature winding circuits 721 ..Responsive to rotor shaft position or speed 722 ..Having electronic power conversion circuit 723 ..Having variable frequency supply 724 ..Having a plurality of windings or winding portions 725 REPULSION MOTOR SYSTEMS 726 .With added motor winding or convertible to series motor 727 INDUCTION MOTOR SYSTEMS 728 .Repulsion start 729 .Power-factor control 730 .With plural separately movable rotors 731 .With voltage source connected to motor secondary 732 ..Electronic device controls current in secondary circuit 733 ..Commutator connected to secondary winding 734 ..Slip rings connected to secondary winding 735 ...Rotor shaft coupled to dynamoelectric machine 736 ....Slip rings connected to dynamoelectric machine winding 737 .Self-cascaded motor windings 738 .With commutated winding 739 .Reversing 740 ..With diverse motor operation 741 ...With braking 742 ....Electromagnetic brakes 743 .....Generator action 744 .....Plugging 745 ..With controlled saturable reactor in primary circuit 746 ...Two phase motor 747 ..Two phase motor 748 ...With plural primary windings or winding portions having common connection 749 ..Operating from a single phase source 750 ...Shaded pole motor 751 ...Split phase motor with capacitor interchangeably connected in series with either primary winding 752 ....With controlled electronic device to provide the series connection 753 ...With de-energizable start winding 754 ....With separate winding or winding portion energized for each direction of rotation 755 ....Automatic current reversal on start winding 756 ..With controlled electronic switch for phase reversal 757 .Braking 758 ..With diverse operation 759 ..Dynamic braking 760 ...Direct current primary winding braking circuitt 761 ....Rotating rotor controls braking current in primary winding 762 ....With a.c. to d.c. conversion circuit 763 ..Reversal of power to primary winding 764 ...Three phase power reversal 765 ..Eddy current braking circuits 766 .Primary and secondary circuits 767 .Primary circuit control 768 ..Three phase motor operated from single phase source 769 ...With dynamoelectric converter 770 ..Dual voltage motors 771 ..Delta-wye, plural wye, or plural delta connected primary windings 772 ..Plural speed 773 ...Pole changing 774 ....Single phase motor 775 .....Separate primary running winding for each pole number, alternately energized 776 .....Entire primary running winding energized for each running speed 777 ....Separate primary running winding for each pole number, alternately energized 778 ..Starting control 779 ...With speed control 780 ...Three phase motor with variable transformer to initially adjust voltage to motor windings 781 ...Operating from a single phase source 782 ....With protective features 783 .....Thermal starting and thermal overload protection 784 ....Impedance for reducing current during starting operation 785 ....Start winding removed during running operation 786 .....By electronic switch 787 ......With transformer for sensing the run winding current 788 ......With variable temperature coefficient resistor in switch control circuit 789 .....By electromagnetic switch 790 ......With relay coil in series with main winding 791 .....By thermal switch 792 ......With variable temperature coefficient impedance element 793 .....By centrifugal switch 794 ....Capacitor run motor with different capacitance at starting 795 .....With plural capacitors 796 ....Saturable winding in capacitor run motor circuit 797 ....Phase splitting using stator winding mutual inductance or saturable winding 798 ..Responsive to motor condition 799 ...Responsive to speed or rotation phase angle 800 ....With controlled power conversion 801 .....Including inverter 802 ......Responsive to an additional condition 803 .......With controlled a.c. to d.c. circuit in inverter supply 804 ....With controlled magnetic reactance 805 ...Responsive to motor voltage 806 ..Condition responsive 807 ..Frequency control 808 ...With voltage magnitude control 809 ...With voltage phase angle control 810 ...With voltage pulse time control 811 ....Pluse width modulation or choppingg 812 ..Voltage control 813 ...With transformer 814 ...With impedance control 815 ....Saturable reactor 816 ...Single phase, split phase motors 817 ....With capacitor 818 .Secondary circuit control 819 ..Open secondary member or portion thereof with means to open or close the circuit thereto 820 ..Closed secondary member or member portion with means to change electrical characteristics thereof 821 ..Impedance control of secondary circuit 822 ...Responsive to motor condition 823 ....Rotor speed or position responsive 824 .....Centrifugal force of rotor controls secondary circuit impedance 825 ....Induction motor current 826 .....Primary motor current 827 ....Frequency of secondary current 828 ....Secondary voltage 829 ...By manual operation 830 .With relatively movable cooperating motor parts to control energized motor 831 ..Axially movable cooperating parts 832 ..Dual stators, one or both angularly movable 244 ALTERNATING CURRENT COMMUTATING MOTORS 245 .Universal or A.C.-D.C. motors 246 SERIES MOTORS 247 .Convertible for nonseries motor operation 248 .With plural, diverse or diversely connected or controlled sources of e.m.f. 249 .Control by motor circuit impedance 250 ..Impedance in series with field windings and in parallel to armature winding 251 .Field circuit control 252 ..Plural, diverse or diversely connected or controlled field coils 253 HOMOPOLAR OR UNIFORM FIELD MOTORS 254 SELF-COMMUTATED IMPULSE OR RELUCTANCE MOTORS 255 PLURAL DIVERSE MOTOR CONTROLS 256 .Motor-reversing 257 ..With running-speed control 258 ...And braking 259 ....And acceleration control 260 ...And acceleration control 261 ..With braking 262 ...And acceleration control 263 ..With acceleration control 264 ..With automatic starting and/or stopping 265 ...Stopping upon predetermined movement of or position of motor or driven device 266 ....At limit-of-travel of motor or driven device 267 .....Dual control circuits alternately energized 268 .Running-speed control 269 ..With braking 270 ...And acceleration control 271 ..With acceleration control 272 ..With automatic starting and/or stoppingg 273 .Motor braking 274 ..With acceleration control 275 ..With automatic starting and/or stopping 276 .Acceleration control 277 ..With automatic starting and/or stopping 278 ...In response to an electrical condition 279 ....Automatic stopping means less responsive during acceleration 280 MOTOR-REVERSING 281 .Periodic- or intermittent-reversing 282 ..In response to movement or position (e.g., limit of travel) of motor or driven device 283 .Automatic and/or with time-delay means 284 ..With means to delay reversing until motor substantially stops 285 ..Instant of, or passage or predetermined time or having time-delay means 286 ..Movement or position of motor or driven device 287 .Armature or primary circuit control 288 ..Plural, diverse or diversely controlled armature windings 289 ...Phase-reversal 290 ...Selectively energized windings 291 ..Armature or primary current reversal 292 ...By shifting motor brushes or selecting appropriate set of brushes 293 ...Reversing polarity of current supplied to armature circuit 294 ....Wheatstone bridge type 295 ....Potentiometer-controlled 296 .Field circuit control 297 ..Plural, diverse or diversely controlled field windings 298 ...Simultaneous energization 299 ....With means for short-circuiting a winding 300 ..Field-circuit current reversed 362 BRAKING 363 ."Spotting" or adjustment of braking controller during coasting 364 .Automatic and/or with time-delay means 365 ..Plural diverse conditions or with time delay 366 ..Condition of motor or driven device 367 ...Armature or primary current 368 ...Armature or primary circuit voltage or terminal or counter e.m.f. voltage 369 ...Speed, acceleration, movement or position of motor or driven device 370 .Plural, diverse or diversely controlled braking means 371 ..Including both friction braking "plugging" and/or dynamic braking 372 .Friction braking 373 ."Plugging" or application of reverse power to motor 374 ..Energy flow interrupted when motor stops 375 .Dynamic braking 376 ..Regenerative 377 ...With additional source of e.m.f. 378 ....In series with armature or primary circuit 379 ..Locally closed armature circuit 380 ...Closed through impedance or the like 381 ...With field or secondary circuit control 382 .By auxiliary electric generator or by magnetic attraction or repulsion devices 383 "ANTI-BRAKING" OR BRAKING-PREVENTION MEANSS 430 MOTOR LOAD, ARMATURE CURRENT OR FORCE CONTROL DURING STARTING AND/OR STOPPING 431 .Initial, "cracking" or "starting from rest" torque control 432 CONSTANT MOTOR CURRENT, LOAD AND/OR TORQUE CONTROL 433 .Control of motor load or device driven 434 LIMITATION OF MOTOR LOAD, CURRENT, TORQUE OR FORCE (E.G., PREVENTING OVERLOAD) 436 NONRUNNING, ENERGIZED MOTOR 437 PHASING OR ANGULAR OR LINEAR POSITIONAL CONTROL OF MOVABLE ELEMENT OF THE MOTOR 438 POWER FACTOR CONTROL OF ARMATURE OR LINE CIRCUIT 439 MOTOR COMMUTATION CONTROL SYSTEMS 440 HAVING PLURAL, DIVERSE OR DIVERSELY CONTROLLED SOURCES 441 .A.C. and D.C. 442 .Different voltages 443 PERIODIC, REPETITIOUS OR SUCCESSIVE OPERATIONS CONTROL OF MOTOR, INCLUDING "JOG" AND "INCH" CONTROL 444 .Variable periods or intervals between controlling operations 445 AUTOMATIC AND/OR WITH TIME-DELAY MEANS (E.G., AUTOMATIC STARTING AND/OR STOPPING) 446 .With nonautomatic control means (e.g., manual) 447 .Nonresponsive or less responsive for limited periods 448 .Anti-hunting 449 .With respect to a fixed standard, master or reference device 450 ..Electrical detector 451 ..Mechanically vibrating device as reference device (e.g., tuning fork) 452 .Plural, diverse conditions or with time-delay means 453 ..Electrical condition 454 ...Plural, diverse electrical conditions 455 ....Voltage and current (e.g., watts) 456 .Rate-of-change of a condition 457 ..Interia-type detector 458 ..Electrical condition 459 .Terminal voltage or counter-electromotive force of controlled motor 460 .Sound, supersonic vibration or mechanical vibration 461 .Speed or rate-of-movement 462 ..Centrifugal-type detector 463 ..Tachometer-type detector 464 ...Electric generator tachometer 465 ..In excess of a predetermined valve 466 .Movement, position, or limit-of-travel 467 ..Plural sensing means for determining plural positions or plural limits-of travel 468 ..Limit-of-travel control means 469 ...Overloading limit-of-travel-type control means 470 ..Magnitude of movement or revolutions 471 .Responsive to thermal conditions 472 ..Of motor control means 473 ..In or about the motor being controlled 474 .Motor load, armature or primary or secondary circuit current 475 ..Mechanical-type detector (e.g., by yielding spring devices) 476 ..In excess of a predetermined magnitude 477 ...Intentionally increased load 478 .Electrical conditions in circuit other than controlled motor circuit 479 ..Voltagee 480 .Radiant energy 481 .Pressure in a fluid or granular material 482 .Level of fluid or granular material 483 .Moisture content or wetness 484 .Time or with time-delay means 485 ..Dash-pot or other mechanical delay means 486 ..Pilot- or servo-motors 487 ..Electromagnetic or inductive time-delay means 488 .Responsive to stress in body or material 489 .Responsive to direction, inclination or angular position of bodies 490 WITH SIGNALS, METERS, RECORDERS OR TESTING DEVICES 491 CONTROL OF BOTH MOTOR CIRCUIT AND MOTOR STRUCTURE 492 MOTOR MAGNETIC ENERGY DISSIPATION 493 CONTROL OF BOTH ARMATURE (OR PRIMARY) CIRCUIT AND FIELD (OR SECONDARY) CIRCUIT 494 ARMATURE (OR PRIMARY) CIRCUIT CONTROL 495 .Plural, diverse or diversely controlled, armature or primary windings 496 ..Polyphase windings 497 ..Series-parallel 498 ..Energized or controlled in predetermined sequence 499 ..Wound or energized in magnetic opposition 500 .Plural sources of voltage (including counter e.m.f. cells) 501 .By shunting armature or primary winding 502 .Variable length or tapped armature winding 503 .Frequency or pulsation control 504 .Voltage control 505 .By means to space-discharge devices 506 ..Plural, diverse or diversely connected or controlled space-discharge devices 507 ..Having discharge-control means (e.g., grids) 508 .Impedance-controlled 509 ..Plural, diverse or diversely controlled impedances 510 ...Including both reactor and condenser 511 ..Inherently or self-variable impedance 512 ..Inductive reactor controlled 513 ...Having auxiliary means for saturating reactor core 514 ..Resistor-controlled 515 ...Having short-circuiting means 516 ....Short-circuited step-by-step 519 .By armature or primary circuit-making and/or breaking 520 ..Electromagnetically actuated 521 FIELD OR SECONDARY CIRCUIT CONTROL 523 .Plural, diverse or diversely connected or controlled field windings 524 ..Convertible number-of-poles type (e.g., 4-pole or 6-pole) 525 ..Differentially wound or energized windings 526 ..Series-parallel 527 ..Series field winding 528 ..With means to short circuit a field winding 529 ..Selectively energized 530 .Plural, diverse or diversely connected or controlled sources of field circuit voltage 531 .Variable length or tapped field winding 532 .By means of space-discharge device in field circuit 533 .Impedance-controlled 534 ..Plural, diverse or diversely connected or controlled fieldd circuit impedances 535 ...Wheatstone bridge 536 .By field circuit making and/or breaking 537 ..Intermittently operated 538 MOTOR STRUCTURE ADJUSTMENT OR CONTROL 539 .Both armature and field structures rotatable or adjustable 540 .Rotor element movable axially 541 .Brush or other current-collector control 542 ..Having movement toward or from cooperating part (e.g., brush lifted from commutator) 543 THREE-OR-MORE-POSITIONS MOTOR CONTROLLER SYSTEMS 544 .With other motor control device 545 ..Main line switch 546 .Plural, diverse or diversely controlled controllers 547 ..Plural control stations 548 .Plural control stations 549 .Return to "off", "starting" or "neutral" positions 550 ..Power-operated controllers 551 .Knee- or foot-operated controllers 552 .Power-actuated controllers 553 ..Separately actuated controller contacts 554 ...Electromagnetic actuated 555 ..Electromagnetic actuated 556 ...Reciprocating or oscillating electromagnetic means 557 ...Intermittent or step-by-step operation 558 MISCELLANEOUS * **************************** * DIGEST * **************************** DIG 2 Windshield wiper controls